Sash-lifting device for automobiles



O; W. WHITEHEAD.

SASH LIFTING DEVICE FOR AUTOMOBILES.

APPLICATION HLED 001225, 1920.

2 SHEETSSHEET l.

INVENTOR/ 1/ ATTORNEY Patented Sept. 6, 1921.

0. W. WHITEHEAD.

SASH.L]FT|NG DEVICE FOR AUTOMOBILES.

APPLICATION FILED OCT. 25, I920.

. IPa tentedSept. 6,1921.

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INVENTOR, (9%). )?%4(,

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Specification of Letters Patent.

U15 NEAR DAYTUN, OHIO.

SASE-LIIFTING DEVICE FOR. AUTOMOBILES.

Patented Sept. '16, 1921.

Application filed October 25, 1920. Serial Ito. 4.19339.

To all whom it may concern.

Be it known that l, Omvnn W. WHITE- HEAD, a citizen'of the United States, residing in the county of Montgomery, near the city of Dayton, State of Ohio, have invented certain new and useful Improvements in Sash-Lifting Devices for Automobiles, of which the following is a specification.

The principal object of my invention is to provide for automobiles and other vehicles, a sash lifting device which is simple in construction .and efiicient in operation. At present it requires a great .deal of efi'ort to raise and lower a window in a car by straps, and in cases where the window sticks in the frame, the sash must be jarred loose by frequent blows with the hand or other object, resulting often times in damage to the window construction and inconvenience to the passenger.

My improved lifting device obviates the above difficulties, inasmuch as the sash is raised and lowered by a screw that is operated by a handle within easy access of the passenger. Means are also .provided for automatically positioning the lower end of,

the sash on the fence iron afterthe raising operation, and for automatically releasing it from the latter at the beginningof the lowering operation.

. In the accompanying drawings, Figure 1 is a perspective view of the interior of a sedan, showing my improved sash raising and lowering device. Fig. 2 is a side view of a window frame, showing the window as it has been partially raised by myimproved lifting device. Fig. 3 is a front elevational view of the lifting device, showing the means for turning the worm. Fig. 4 is alongitudinal sectional view taken through a door frame, showing my improved sash lifting means. Fig. 5 is a side elevational view of the worm and roller. Fig. 6 is a front elevational view oftlfe same. Fig. 7 is a top plan view thereof, showing the stabilizing flange and shifting boss. Fig. 8 is a side elevational view of my sash lifting means, showing how the roller is forced outwardly by the boss to lock the rails. Fig. 9 is a top plan view of the device, showing how the boss has forced the roller and bot- And. Fig. 10 is a top plan view of the device, showing the roller in its normal position within the worm.

Throughout the specification and drawings, similar reference characters denote corresponding parts.

In a detailed description of the preferred form of embodiment of my invention, the numeral 1 designates an automobile of the sedan type containing a number of rectangular frames 2 in which windows 3 are vertically movable. Each window 3 is carried by a sash 4 having a transverse bottom rail 5.

Pivotally secured in the middle top portion of the base rail 6 of the frame 2, is a vertically disposed Worm 7 preferably of the cork screw type. The upper reduced end of this worm loosely projects through a tongue piece 8 on a bracket 9 secured within a recess 10 provided in the rear middle portion of a transverse member 11 secured within the central portion of the frame 2. (See Figs. 2 and 3.)

For the purpose of rotating the worm 7, the following means are provided. Faston the upper end of the worm 7 below the tongue piece 8, is a horizontally disposed bevel gear 12 that meshes with a vertically disposed bevel gear 13 fast on a shaft 14 that is journaled in a bearing plate 15 secured to the outer middle portion of the transverse member or rail 11. Secured to the outer end of the shaft 14 is a handle 16 which, when rotated by a passenger of the car, will turn the worm 7 to raise or lower the window sash 4 through the following means. (See Fi 2 and 3.

On the outer end of this roller there is an integral flange 20 for a purpose hereinafter to be described. (See Figs. 5 and 6.)

The worm 7 is preferably formed by spirally winding a strip of metal of greater width than thickness around a core rod, and then withdrawing the rod, leaving a worm coil with a spiral space adapted to recelve the roller 19, whose flange 20, bein wider than that space, travels inside the coi to prevent the roller from being pulled out of that space. Therefore, when the worm 7 1s turned by the handle 16, the roller 19 w1ll be raised or lowered by the spiral coil of wh1 ch the worm consists, to raise or lower the w1ndow sash t to whose bottom rail 5 the support for said roller is secured.

( These flanges 21, 21 form together a yoke which freelyslides' along the outer surface of the .worm 7 during'the upward and down-' ward movement of the roller 19, to guide the latter and prevent any side friction of the sash. (See Figs. 7, 9 and 10.)

I Mountedin the frame 2 opposite the transwerse member 11, is a lock board 22'between which and the member 11 space is left for a horizontal movement of the bottom rail 5 of the sash, towardthelock boa'rd. Secured to the inner surface of the 105k board 22, and .projecting a short distance above its top innor edge, is a fence iron 23. over whicha -pair of flanged pieces 24, 24 secured to the bottom rail 5-,of the sash, are adapted to fit. For the purpose of shifting the bottom rail '5 of the sash so that these flanged pieces 24,. may""beautomatically' hooked over the fence iron 23, to firmly hold-thewindow in its uppermost position, and for automatically withdrawing said flanged pieces from 7 ",said fence ironto permit the sash to be lowered, the followi n means are provided.

Referring to Flgs. g and 9,. there projects inwardly from one of the flanges 21, at one )side of the roller 19, apbeveled boss'25. yThe latter is so dis osed as to travel ahead of the roller 19 in t e spiral slot of the worm 7 At the upper end of the worm, the spiral slot terminates in an enlarged recess 26, the end of said slot being curved almost to circular form as shown in Fig. 3 to release the flange 20 on the roller .19. Now when the boss 25. is engaged by the upper curved wall of the enlarged recess 26-of the worm slot, it will force the roller 19 outwardly through said recess, since the latter is wider than the flange on the roller. The metallic member .17 which carries the boss 25, will thereupon draw the bottom rail 5 of the sash a suflicient distance toward the lock board 22 to permit the flanged pieces 24, 24 to descend over the fence iron 23 on the lock board, 'thereby to hold the sash 4 firmly in its raised position. (See Figs. 8, 9 and 10.)

Now, when it is desired to lower the sash, the handle 16 is turned in the opposite direction, whereupon the circular edge of the metal strip at the bottom of the enlarged recess 26, will engage the roller 19 to lift it, and through it, the bottom rail 5 of the sash will be raised a suflicient distance to lift the flanged pieces 24, 24 above the fence rail 23 on the lock board 22. 'When the worm 7 is further turned by the handle 16, the flange 20 on the roller 19 will be drawn behind the spiral slot in the worm, to pull the rail 5 of the sash inwardly a suflicient distance to cause the flanged pieces 24, 24 to clear the fence iron 23, whereupon'a further rotary movement of the worm 7 will draw the roller 19 downwardly to lower the sash. (See Figs. 3 and 10.)

Itis thus seen that after the sash reaches the limit of its upward movement, its; bottom rail 5 will be automatically securedto the fence iron on the lock board, and that at the beginning of the lowering operation of the sash, thelatter is automatically released from said fence rail.

A vertical slot 27 is provided in the upper end'of the worm 7 through which the roller 19 may be pulled out without disturbing theworm when it is desired to remove the sash from the frame. (See Fig. 3.)

.I' do not wish to-be limited to the details of construction. and arrangement herein shown and described, an modifications may be made therein within the scope of the subjoined claims.

Having described my inventiom'I claim 1. In a device of the "type described, the combination with a frame, of asash vertically movable in said frame, a spirally coiled element pivotally secured in the bottom rail of saidsa'sh, a transverse member secured in the middleportion of said frame, a hearing forthe upper end of said coiled element, a flange on said projection, adapted to engagethe inner surface of said coiled elenient secured to said transverse member, a

fprojection on the bottom rail of said sash,

that enters thespiral groove in said coiled element, and handle. means secured to said transverse member, operatively connected with said worm, for turning the latter to raise and lower said sash.

2. In a device of the type described, the combination with a frame, of a sash vertically movable in said frame, a splrally coiled element pivotally secured the bottom rail of said sash, a transverse member secured in the middle portion of said frame, a stud projecting outwardly from the bottom rail of said sash, a roller on said stud adapted to loosely enter the spiral slot formed by said coil, 9. flange on said roller, adapted to engage the inner surface of sa1d coil, and handle means secured to sa1d transverse member, operatively connected wlth said coiled element, for turning the latter to raise and lower said sash.

3. In a device of the type described, the combination with a frame, a lock board secured to the middle portion of sa1d frame, a fence iron projecting above thetop nmer edge of said board, of a sash vertlcally movable in said frame, a bottom rail on sa1d sash, a flange on said bottom rail, a worm.

for raising said sash, having its spiral groove enlarged at the top, and a boss earned by the bottom rail of the sash, adapted to be engaged by the upper curved wall of the any changes .or

, aaeaooe enlarged portion of the worms spiral groove, to shift the bottom rail of the sash a suflicient distance toward the lock board to hook said flange over the fence iron, for the purpose specified.

4'. In a device of the type described, the combination with a frame, a lock board secured to the middle portion of said frame, a fence iron projecting above the top inner edge of said board, of a .sash vertically movable in said frame, a bottom rail on said sash, a flange on said bottom rail, a vertical worm, means for turning said worm, a flanged roller pivotally secured to said bottom rail, adapted to travel in the spiral slot in said worm, said slot being enlarged at the top of said worm to release the flanged roller, and a beveled boss carried by said bottom rail, adapted to be engaged by the curved upper wall of the enlarged portion of the spiral slot, to shift the bottom rail ofthe sash a sufficient distance toward the lock board to hook said flange over the fence iron, for the purpose specified.

5. In a device of the type described, the combination with a frame, a lock board secured to the middleportion of said frame,

' a fence iron. projecting above the top inner ed e of said board, of a sash vertically movabia in said frame, a bottom rail on said sash, a flange on said bottom rail, a vertical worm, means for turning said worm, a supporting member on. said bottom rail, a stud,

on said supporting member, a roller on said stud, adapted to travel in the spiral slot in said worm, a flange on said roller wider than said slot and adapted to; travel behind the same, said slot being jeglllarged at around the enlarged portion of said slot, to

shift the bottom rail of the sash a suficient distance toward the lock board to hook said flange over the fence iron, for the purpose specified.

6. In a device of the type described, the combination with a frame, a lock board secured to the middle portion of said frame, a fence iron projecting above the inner edge of said board, of a sash vertically movable in said frame, a bottom rail on said sash, a flange on said bottom rail adapted to hook over said fence rail, a coiled-element for lowering said sash, and a flanged projection on said bottom rail cooperating with said coiled element, to automatically disengage 

